🚀 go-pugleaf

Barry Margolin wrote:
> 
> 
> You can't really assume anything.  Besides the issues you raised, there's
> also the problem of byte order within the integers.

originally i planned on solving this with htonl and ntohl functions.

> You should use a standard encoding mechanism.  Most Unix systems include
> the XDR library routines, which implement the encoding mechanism used by
> ONC RPC protocols (e.g. NFS).

yes, the XDR library routines seem suitable for my purposes. but a few
things about using the XDR routines are a bit unclear to me. for example
if i want to both send and receive data through a socket connection
using the XDR routines, the code probably looks something like this:

	...

	/* establishing the socket connection, error handling and XDR
filter 		           definition for struct netdata have been omitted */

	fp = fdopen(fd, "r+");

	xdrstdio_create(&xdrs, fp, XDR_DECODE);

	xdr_netdata(&xdrs, &data);

	xdrstdio_create(&xdrs, fp, XDR_ENCODE);

	xdr_netdata(&xdrs, &data);
	...


- do i have to fflush() the stream on the write end before trying to
read from it?

- do the xdr-routines e.g. xdrstdio_create() reserve resources (apart
from the stream allocated with fdopen()) that need to be freed? 

- when closing the connection are fclose() and close() equivalent?


--
	marko asplund